i will turn it over to jeff and then we'll go to randy and then george comes back, clinton's up once we have him back online. >> nic, thank you but it's an honor for me to be are speaking of old home week. i started working on deregulation issue of the american advice institute in june 1979. so it's great for me to be back after a long time. i think that the paper that greg and judge bork have done is really very excellent and i think rick has done a great job preventing -- present the cages in which wages and. i'd like to use my time to expand on three aspects of the issue that i think are pertinent. all of these are aspects that the paper touches on to one degree or another. but i'd like to call them out and drill down just a little bit on this reach characteristics of high-tech markets and have impact the way we think about the google issue. and those our first modularity and in a platform competition. secondly, the notion of multi-sidedness, which greatest talk about. and thirdly, diamond is a. so let's think about modularity and into platform competition. i think the paper is co